The first time I clicked that link, I got a message overlay on top of the video stating that they were "Unable to load a message from one of our sponsors." Damn straight. It then went on to say that if I was using ad blocking software (I am, ff w/ad-block) I could click a link to enable ads. I clicked the back button instead.
So then I wanted to quote the message so I clicked the link again, and this time it started playing a 25 second advertisement. Not sure how they did that trick. But generally sites that think I will watch a 25 second ad to get a little bit of video that will end up on some ad-free viral site if it's any good are dreaming. 25 seconds seems like a looong time anymore.